Table 2. Predictors of TB infection, evaluation, preventive treatment initiation, and preventive treatment completion.

Participant characteristics		Enrolled	aRR (95% CI) for positive TB infection test	aRR (95% CI) for completing evaluation	aRR (95% CI) for initiating preventive treatment	aRR (95% CI) for completing preventive treatment
Risk group	Contacts	1,150	Reference	Reference	Reference	Not assessed
	Congregate setting	107	0.67 (0.48–0.93)	0.71 (0.46–1.10)	0.62 (0.18–2.17)	Not assessed
	Health care workers	357	0.73 (0.60–0.87)	0.25 (0.16–0.38)	1.37 (0.77–2.45)	Not assessed
Age group	0–4 years	115	Reference	Reference	Reference	Reference
	5–19 years	445	1.24 (0.74–2.08)	0.89 (0.72–1.10)	0.87 (0.66–1.16)	1.02 (0.79–1.32)
	20–35 years	424	2.28 (1.39–3.74)	0.93 (0.75–1.34)	0.56 (0.39–0.82)	1.00 (0.73–1.35)
	>35 years	630	3.49 (2.16–5.63)	1.06 (0.91–1.23)	0.39 (0.28–0.55)	1.06 (0.82–1.36)
Sex	Female	961	Reference	Reference	Reference	Reference
	Male	653	1.21 (1.04–1.41)	0.93 (0.92–1.06)	0.95 (0.75–1.19)	0.89 (0.72–1.09)

For the first three analyses, risk ratios are adjusted for risk group, age, and sex; for the analysis of predictors for completing preventive treatment, risk group is not assessed because of small numbers of non-contacts initiating treatment. Abbreviations: aRR = adjusted risk ratio, CI = confidence interval, TB = tuberculosis.